The invention discloses a water-based nano thin-
coating heat preservation paint and a preparation method thereof. The paint comprises the following raw materials by weight: 30-40 parts of an acrylic
emulsion, 5-10 parts of
titanium dioxide, 20-40 parts of hollow glass beads, 5-20 parts of
aerogel and 5-10 parts of a film-forming assistant. According to the invention, the hollow glass beads and
aerogel are used as the heat insulation basic raw materials, the heat
conductivity coefficient of the paint is greatly reduced and is as low as 0.031-0.035W / m.K, and the paint can reach a remarkable heatinsulation effect under the condition of a very small construction thickness. Meanwhile, the hollow glass beads and the
aerogel are conducive to improving the
chemical stability of the paint itself,thus improving the covering power, lightening power,
corrosion resistance, light resistance and
weather resistance, and enhancing the
mechanical strength of the paint;
cellulose, a
wetting dispersant,a defoaming agent and a
preservative are mixed; by virtue of
ethylene glycol, the acrylic
emulsion and a pH
regulator, the paint has excellent cohesiveness,
weather resistance, film-forming properties, gloss and color retention and mechanical properties; and the use of a
vinyl chloride-vinylidene
chloride copolymer emulsion also can reach a grade A1
flame retardant effect.